Yeah we all have a level of respect, and I think that stopping what your doing and bowing your head as they pass is probably more respectful as a gesture goes, I could have understood it better maybe if the policeman had done this, it just seemed like a strange gesture to me at the time and I wanted to get other peoples opinions on it.
In todays politically correct world, larger groups of people are penalised for the minorities so as not to offend anyone. I just found it strange in this instance that a policeman although showing his respect was allowed to do so in this manor. I thought that in some instances this geture wouldnt be respectful to the family, so then It got me thinking about what they are told they can and cant do on this subject, they must have guidelines for it.